CN107152084A - One kind lifting self-forming GFRP latticed shell structures and its construction method - Google Patents
One kind lifting self-forming GFRP latticed shell structures and its construction method Download PDFInfo
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- CN107152084A CN107152084A CN201710306260.5A CN201710306260A CN107152084A CN 107152084 A CN107152084 A CN 107152084A CN 201710306260 A CN201710306260 A CN 201710306260A CN 107152084 A CN107152084 A CN 107152084A
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- layer gfrp
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
- E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
- E04B7/105—Grid-like structures
Abstract
The present invention discloses a kind of lifting self-forming GFRP latticed shell structures and its construction method, latticed shell structure includes connecting node and anchorage bearing between GFRP flexible elongated rods, bar, GFRP flexible elongated rods include first layer GFRP rod members, second layer GFRP rod members and third layer GFRP rod members, using the GFRP hollow circular-tubes of pultrusion；Connecting node includes interlayer connection node, rod member extension node and rod end node between bar, the connection that interlayer connection node is used between rod member intersection different layers rod member, rod member extension node is used for the connection being used for layer lengthening rods, rod end node between rod end and anchorage bearing；Anchorage bearing is used to rod end being fixed on substructure or basis, to form stable latticed shell structure；The latticed shell structure uses integral hoisting construction method, reticulated shell curve generating deforming certainly in hoisting process dependent on GFRP rod members.The present invention provides a kind of composite latticed shell structure in field of civil engineering, its dependable performance, make it is simple, construct quick, cheap, can be applied in Practical Project.
Description
Technical field
It is specifically, more particularly to a kind of flexible by GFRP the present invention relates to composite structure and Spatial Lattice Shells
The elastic latticed shell structure and its construction method of stock composition.
Background technology
Nearly 20 years composites have extensive application in field of civil engineering, and be mainly used in armored concrete replaces muscle and people's row
Bridge and floorings.But above-mentioned field is only substitute of the composite as traditional construction material such as reinforcing bar, steel plate.Although compound
Material have the outstanding ratio of strength to weight, just again than and durability, but its own low elastic modulus (such as glass fiber reinforcement answer
Condensation material --- GFRP materials) its extensive use in Structural Engineering is limited to a certain extent.It is used as the master of structural elements
When wanting material, in order to meet the requirement of the rigidity of structure and the often larger member section of needs, it is high to directly result in infrastructure cost,
Other advantages of material can not then be embodied.
Generally, latticed shell structure is the space structure that many quarter butts are connected by certain grid configuration by node, is usually used in
The roof system of the buildings such as gymnasium, cinema, show room, Waiting Lounge, grandstand canopy, hangar, two-way Large Column Spacing workshop.Although
Current Steel Shell applies relatively broad, but still has some limitations, for example：Deadweight is larger；The number of components is big, and
Component species is various when structure type is complicated；Component requirement on machining accuracy is high, and joint structure is complicated.This typically results in component and added
Work difficulty is big, cost is high, very high to welding procedure and technical requirements, and site operation installation difficulty is also big.
Therefore, if a kind of special mode can be found, composite (such as GFRP materials) is applied to space net shell
Structure, overcomes and avoids the shortcoming of traditional latticed shell structure while composite property advantage is given full play of, will realize net
Optimization and lifting of the shell structure in terms of performance, construction and cost.
The content of the invention
In order to overcome the shortcoming that traditional Steel Shell construction is complicated, the physical and mechanical properties of composite are given full play to
Advantage, the present invention provides a kind of lifting self-forming GFRP latticed shell structures and its construction method, by the lifting of work progress from
Shaping, is produced flexural deformation using low-elasticity-modulus and forms required surface modeling, the energy for bearing various loads is provided using high intensity
Power, forms reliable and stable structure.
To achieve the above object, the present invention uses following technical scheme：
According to an aspect of the present invention self-forming GFRP latticed shell structures, the latticed shell structure bag are lifted there is provided one kind
Include：Connecting node between GFRP flexible elongated rods, the bar connected for rod member, and anchorage bearing；
The GFRP flexible elongated rods are made up of first layer GFRP rod members, second layer GFRP rod members, third layer GFRP rod members；
Connecting node includes rod end node and interlayer connection node between the bar；
First layer GFRP rod members, second layer GFRP rod members, third layer GFRP rod members are hollow using the GFRP of pultrusion
Pipe；First layer GFRP rod members, second layer GFRP rod members, the rod end of third layer GFRP rod members pass through rod end node and anchor respectively
Clamped seat connection；First layer GFRP rod members are placed on the lower section of second layer GFRP rod members, and first layer GFRP rod members and the second layer
The intersection of GFRP rod members is connected by interlayer connection node；Third layer GFRP rod members are placed on the upper of second layer GFRP rod members
Side, and third layer GFRP rod members are connected with the intersection of second layer GFRP rod members by interlayer connection node；
The anchorage bearing is used to need in first layer GFRP rod members, second layer GFRP rod members, third layer GFRP rod members
The rod member rod end of support restraint is fixed on substructure or basis, to form stable latticed shell structure.
Preferably, connecting node further comprises that rod member extends node between the bar, if standard member curtailment is designed
It is required that when, the first layer GFRP rod members, the second layer GFRP rod members, the third layer GFRP rod members are respectively by described
Rod member extension node is lengthened, without lengthening when standard member length is enough；
Extend node by rod member respectively when single first layer GFRP rod members, the curtailment of second layer GFRP rod members to add
Long, every first layer GFRP rod member, the rod end of second layer GFRP rod members after lengthening set rod end node respectively.
Preferably, before lifting, first layer GFRP rod members are arranged in smooth field with second layer GFRP rod member orthogonals
On ground, equidirectional first layer GFRP rod members, equidirectional second layer GFRP rod members are arranged in parallel in same layer respectively, respectively
Splicing extension is carried out using rod member extension node when single standard member curtailment in layer rod member, if single standard member
Length need not then be extended using rod member extension node enough, every first layer GFRP rod members, the bar of second layer GFRP rod members
End sets rod end node respectively, and layer is passed through in two layers of rod member intersection between first layer GFRP rod members and second layer GFRP rod members
Between connecting node be attached, so as to form planar bilayer network；
The planar bilayer network constituted in first layer GFRP rod members and second layer GFRP rod members lifts by crane to form space song
Face double layer grid and after being connected by rod end node with anchorage bearing, third layer GFRP rod members are along space curved surface double layer grid
The diagonal of each grid cell be arranged on second layer GFRP rod members, and pass through interlayer connection node and lower section
Double-deck rod member, i.e. first layer GFRP rod members and the connection of second layer GFRP rod members, so as to be formed by three layers of rod member, i.e. first layer
The surface net shell rock-steady structure of GFRP rod members, second layer GFRP rod members and third layer GFRP rod members composition.
Preferably, the rod end of the third layer GFRP rod members is connected by rod end node with anchorage bearing, or with anchoring
Bearing is not connected to.
Preferably, the GFRP flexible elongated rods, i.e.,：First layer GFRP rod members, second layer GFRP rod members and third layer GFRP
Rod member uses glass fibre reinforced composion (GFRP) hollow circular-tube of pultrusion, wherein：
The external diameter of hollow circular-tube between 20mm between 100mm, the wall thickness of hollow circular-tube between 2mm between 8mm, it is empty
The ratio between panel length and caliber of heart pipe are between 15 to 40.
Preferably, the rod member extension node is connected by bonding or bolt connecting mode with being connected the bar segment of extension,
To bear the effect of axle power, shearing and moment of flexure simultaneously, first layer GFRP rod members, the second layer GFRP for meeting design length are formed
Rod member and third layer GFRP rod members；
The rod member extension node can not be located at the intersection between different layers rod member.
Preferably, before lifting, the rod end node is bolted mode and is temporarily fixed on first layer GFRP bars
The rod end of part, second layer GFRP rod members；After lifting shaping, the interim fixed-use bolt of removal and adjustment angle and anchorage bearing
Connection, and it is permanently connected by the rod end of bonding or bolt connecting mode and institute connecting rod.
Preferably, the interlayer connection node is located at the intersection of different layers rod member, and connects difference by latch closure mode
Layer rod member；
The interlayer connection node includes bicyclic node, 3 link points, wherein：Bicyclic node is used to connect adjacent two layers bar
Part, i.e. first layer GFRP rod members and second layer GFRP rod members or second layer GFRP rod members and third layer GFRP rod members；Three links
Point is used to connect first layer GFRP rod members, second layer GFRP rod members, three layers of rod member of third layer GFRP rod members simultaneously.
Put down it is highly preferred that the interlayer connection node only limits relative displacement and rod member of institute's connecting rod at node
Relative rotation outside face, relative rotation of the different layers rod member in the rod member plane at node is not limited.
Preferably, the anchorage bearing is made using stainless steel, and by pre-buried mode be anchored in substructure or
In basis.
It is highly preferred that the anchorage bearing limits the translation and rotation of rod end node, to form consolidation bearing simultaneously；Or
Person, the anchorage bearing only limits the translation of rod end node but does not limit the rotation of rod end node, to form hinged-support.
Preferably, connecting node is made using stainless steel or GFRP drawing and extruding section bars between the bar；Wherein：
The pipe fitting internal diameter of the rod member extension node and the rod end node is more than institute connecting rod external diameter 0.5mm, described
The length of rod member extension node and the rod end node is between 3 to 6 times of institute's connecting rod external diameter；The interlayer connection
The size of node matches with institute connecting rod size.
The structure of the lifting self-forming GFRP reticulated shells is before lifting, first layer GFRP rod members and second layer GFRP bars
Part orthogonal is arranged on smooth location, and equidirectional rod member is arranged in parallel in same layer, is led to during single rod member curtailment
Cross rod member extension node to lengthen, every Rod end is set passes through interlayer between rod end node, two layers of rod member in rod member intersection
Connecting node is attached.
It is described according to another aspect of the present invention there is provided the construction method of above-mentioned lifting self-forming GFRP latticed shell structures
Lifting self-forming GFRP latticed shell structures use integral hoisting construction method, and latticed shell structure curve generating depends on GFRP flexible links
Part deforming certainly in hoisting process；
The construction method comprises the following steps：
1) anchorage bearing is arranged
According to design requirement, anchorage bearing is mounted on to the finger on substructure or basis using pre-buried or other modes
Positioning is put；
2) rod member cutting and splicing
Required according to construction lofting, by GFRP section steel cuttings into designated length, making obtains first layer GFRP rod members, the
Carried out in two layers of GFRP rod members, third layer GFRP rod members, each layer rod member during single rod member curtailment using rod member extension node
Splicing extension, and rod end node is fixed to by bolt first layer GFRP rod members and second layer GFRP rod members temporarily respectively
Rod end；
3) ground is installed
First layer GFRP rod members and second layer GFRP rod members are laid in construction according to specified location and spacing orthogonal
On place, and make first layer GFRP rod members under, second layer GFRP rod members upper, while using interlayer connection node in first
The intersection of layer GFRP rod members and second layer GFRP rod members, first layer GFRP rod members are attached with second layer GFRP rod members,
Form planar bilayer network；
4) lifting shaping
According to design Heave Here, the planar bilayer grid 3) obtained is lifted in the air using loop wheel machine or miscellaneous equipment, shape
Ensure first layer GFRP rod members and the second layer into space curved surface form, i.e. space curved surface double layer grid, and by construction monitoring
The elevation of GFRP rod member rod ends is in error range；
5) landing anchoring
The space curved surface double layer grid for lifting by crane formation is moved into predetermined installation site and transferred, by each rod end knot adjustment
Connected respectively with corresponding anchorage bearing by bolt after to proper angle, and further using bonding or the connection side of bolt
Rod end node is firmly connected by formula with first layer GFRP rod members, second layer GFRP rod members；In anchoring procedure, if it is necessary,
Removal 2) in the interim fixed-use bolt of rod end node；Treat after the completion of all anchorage bearing connections, loosen suspension centre；
6) third layer GFRP rod members are installed
After landing anchoring is completed, on second layer GFRP rod members, along each grid cell of space curved surface double layer grid
Diagonal laying third layer GFRP rod members, and by interlayer connection node by the double of third layer GFRP rod members and lower section
Layer rod member, i.e. first layer GFRP rod members, the connection of second layer GFRP rod members, so as to be formed by three layers of rod member, i.e. first layer GFRP bars
The surface net shell rock-steady structure of part, second layer GFRP rod members and third layer GFRP rod members composition；
7) affiliated facility is installed
According to design requirement, partial cut is carried out to the latticed shell structure after 6) shaping, door-window opening is formed, laid simultaneously
Roof covering.
In the present invention, the GFRP flexible elongated rods are standard member on the market or the rod member of customization model, according to design
It is required that can at the construction field (site) cut and splice to required length, or advance well cutting is transported to job site and spliced again, then
Lifting shaping is installed and completes construction.
Compared with traditional latticed shell structure, the beneficial effects of the invention are as follows：
1) simple structure：All GFRP flexible members section models are consistent, and joint structure is simple.
2) convenient material drawing：The general adoptable rod member of structure is standard GFRP rod members on the market, convenient to obtain；Rod member
Connecting node and anchorage bearing can be using existing node types on the market, also can be specially customized, because species model is single,
Price is also relatively inexpensive.
3) construct simple and quick：Special forming method and simple component construction so that structure can accomplish rapid construction,
Dependable performance；Structure type provides enough strength and stiffness, and the corrosion resistance of material in itself is then conducive to the durable of structure
Property.
4) it is cheap：Although the price of GFRP materials is more expensive than steel, the utilization ratio of structural material is very high, single
Plane product is few with material, and installation cost is much lower relative to traditional Steel Shell.
5) form precision and elegance, moulding is enriched：Mechanical Builds change, the curved surface of formation according to the difference that suspension centre is chosen
Form is succinctly graceful.
Latticed shell structure of the present invention builds simple and quick, and dismounting is also very convenient, and can easily obtain special
Moulding, above have very big advantage in the application as temporary building.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the shaping structures figure of one embodiment of the present invention；
Fig. 2 is interlayer connection node (bicyclic) schematic diagram of one embodiment of the present invention；
Fig. 3 is interlayer connection node (three rings) schematic diagram of one embodiment of the present invention；
Fig. 4 extends node schematic diagram for the rod member of one embodiment of the present invention；
Fig. 5 is the anchorage bearing and rod end node schematic diagram of one embodiment of the present invention；
Fig. 6 is the construction process figure of one embodiment of the present invention.
In figure：1-first layer GFRP rod members；2-second layer GFRP rod members；3-third layer GFRP rod members；4-rod member prolongs
Long node；5-rod end node；6-interlayer connection node；7-anchorage bearing.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out real premised on technical solution of the present invention
Apply, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementations
Example.
As shown in figure 1, a kind of self-forming GFRP latticed shell structures that lift are preferable to carry out structure, wherein the latticed shell structure
Connecting node and anchorage bearing 7 are constituted between GFRP flexible elongated rods, bar；
The GFRP flexible elongated rods include first layer GFRP rod members 1, second layer GFRP rod members 2 and third layer GFRP rod members
3, first layer GFRP rod member 1, second layer GFRP rod members 2 and third layer GFRP rod members 3 use the GFRP open circles of pultrusion
Pipe；
Connecting node includes rod member extension node 4, rod end node 5 and interlayer connection node 6 between the bar, wherein：Rod member
Extension node 4 is used to lengthen rod member (as shown in Figure 4), and rod end node 5 is used for first layer GFRP rod members 1, the second layer
Connection (as shown in Figure 5) between GFRP rod members 2 and the rod end and anchorage bearing 7 of third layer GFRP rod members 3, interlayer connection section
Point 6 is used between first layer GFRP rod members 1, second layer GFRP rod members 2 and the intersection's different layers rod member of third layer GFRP rod members 3
Connection (as shown in Figure 2 and Figure 3)；
The anchorage bearing 7 is used for first layer GFRP rod members 1, second layer GFRP rod members 2 and third layer GFRP rod members 3
Rod end be fixed on substructure or basis, to form stable latticed shell structure；
The latticed shell structure uses integral hoisting construction method, and reticulated shell curve generating is dependent on GFRP rod members in hoisting process
In from deform.
Mode, the GFRP flexible elongated rods, i.e. first layer GFRP rod members 1, second layer GFRP bars are preferably carried out as one
Part 2 and third layer GFRP rod members 3, are glass fibre reinforced composion (GFRP) hollow circular-tube using pultrusion, its
In：
The external diameter of hollow circular-tube between 20mm between 100mm, the wall thickness of hollow circular-tube between 2mm between 8mm, it is empty
The ratio between panel length and its caliber of heart pipe are between 15 to 40.
Connecting node between mode, the bar is preferably carried out as one to make using stainless steel or GFRP drawing and extruding section bars；
The pipe fitting internal diameter of the rod member extension node 4 and the rod end node 5 is with more than institute connecting rod external diameter 0.5mm
It is advisable；The length of the rod member extension node 4 and the rod end node 5 is between 3 to 6 times of institute's connecting rod external diameter；Institute
The size of interlayer connection node 6 is stated with institute connecting rod size to match.
Mode is preferably carried out as one, the lifting self-forming GFRP latticed shell structures are before lifting, first layer GFRP
Rod member 1 is arranged on smooth location with the orthogonal of second layer GFRP rod members 2, and each layer rod member is equidirectional parallel arrangement, respectively
Extend node 4 by rod member during single rod member curtailment in layer to lengthen, the rod end of every rod member sets rod end node 5 respectively.
It is attached between first layer GFRP rod members 1, second layer GFRP rod members 2 in rod member intersection by interlayer connection node 6.
Further, the rod member extension node 4 completely may be used by the modes such as bonding or bolt connection and institute's connecting rod
By connection, the effect of axle power, shearing and moment of flexure can be born simultaneously；
The rod member extension node 4 can not be located at rod member intersection.
Further, before lifting, the rod end node 5 is bolted mode and is temporarily fixed on first layer respectively
The rod end of GFRP rod members 1, second layer GFRP rod members 2, after lifting shaping, removal bolt and adjustment angle and anchoring branch
Seat 7 is connected, and permanently connected by bonding or the mode such as bolt connection and the rod end of institute connecting rod.
Mode is preferably carried out as one, the interlayer connection node 6 is located at different layers rod member intersection, by latch closure side
Formula connects different layers rod member.
Further, the interlayer connection node 6 includes bicyclic node, 3 link points, wherein：Bicyclic node is used to connect
Connect adjacent two layers rod member i.e. first layer GFRP rod members 1 and second layer GFRP rod members 2 or second layer GFRP rod members 2 and third layer
GFRP rod members 3,3 link points are used to connect first layer GFRP rod members 1, second layer GFRP rod members 2, third layer GFRP rod members simultaneously
3。
Further, the interlayer connection node 6 only limits relative displacement and rod member of institute's connecting rod at node
Relatively rotated outside plane, rod member is not limited and is relatively rotated in the rod member plane at node.
Mode is preferably carried out as one, the anchorage bearing 7 is made using stainless steel, and is anchored by the mode such as pre-buried
In substructure or basis.
Further, the anchorage bearing 7 can limit the translation of rod end node 5 simultaneously and rotate to form consolidation bearing,
Also it can only limit the translation of rod end node 5 but not limit it and rotate and form hinged-support.
Mode, the third layer GFRP rod members 3, by first layer GFRP rod members 1 and the second layer are preferably carried out as one
After the planar structure that GFRP rod members 2 are constituted is lifted by crane and to form space curved surface double layer grid and be reliably connected with anchorage bearing 7, edge
Surface mesh diagonal is arranged on second layer GFRP rod members 2, and passes through interlayer connection node 6 and the first layer of lower section
GFRP rod members 1 and second layer GFRP rod members 2 are reliably connected, and are formed by three layers of rod member, i.e.,：First layer GFRP rod members 1, the second layer
The surface net shell rock-steady structure that GFRP rod members 2, third layer GFRP rod members 3 are constituted.
Further, the rod end of the third layer GFRP rod members 3 can be connected by rod end node 5 with anchorage bearing 7,
It can be not connected to.
In the present embodiment, the lifting self-forming GFRP latticed shell structures use integral hoisting construction method, reticulated shell curved surface into
Shape deforming certainly in hoisting process dependent on GFRP rod members；
As shown in fig. 6, the construction method of the lifting self-forming GFRP latticed shell structures comprises the following steps：
1) bearing is arranged
According to design requirement, anchorage bearing 7 is mounted on substructure or basis using pre-buried or other modes
Specified location.
2) rod member cutting and splicing
Required according to construction lofting, by GFRP section steel cuttings into designated length, making obtains first layer GFRP rod members 1, the
Rod member extension section is respectively adopted in two layers of GFRP rod members 2, third layer GFRP rod members 3, each layer rod member during single rod member curtailment
Point 4 carries out splicing extension, and rod end node 5 is fixed into first layer GFRP rod members 1, the second layer temporarily respectively by bolt
The rod end of GFRP rod members 2.
3) ground is installed
First layer GFRP rod members 1, second layer GFRP rod members 2 are laid in and applied according to specified location and spacing orthogonal
Workshop on the ground, make first layer GFRP rod members 1 under, second layer GFRP rod members 2 upper, while using interlayer connection node 6 in bar
First layer GFRP rod members 1, second layer GFRP rod members 2 are attached by part intersection, form planar bilayer network.
4) lifting shaping
According to design Heave Here, the planar bilayer grid for being obtained a upper construction procedure using loop wheel machine or miscellaneous equipment is lifted by crane
To aerial, space curved surface form, i.e. space curved surface double layer grid are formed, and first layer GFRP rod members are ensured by construction monitoring
1st, the elevation of the rod end of second layer GFRP rod members 2 is in error range.
5) landing anchoring
The space curved surface double layer grid for lifting by crane formation is moved into predetermined installation site and transferred, each rod end node 5 is adjusted
It is whole to be reliably connected respectively with corresponding anchorage bearing 7 by bolt to after proper angle, and further using bonding or bolt
Rod end node 5 and first layer GFRP rod members 1, second layer GFRP rod members 2 are connected firmly by connected mode respectively；In anchoring procedure,
If necessary can removal rod end node 5 interim fixing bolt；After the completion for the treatment of that all anchorage bearings 7 are connected, loosen suspension centre.
6) third layer GFRP rod members are installed
After landing anchoring is completed, on second layer GFRP rod members 2, along each grid list of space curved surface double layer grid
The diagonal laying third layer GFRP rod members 3 of member, and by interlayer connection node 6 by third layer GFRP rod members 3 and lower section
Double-deck rod member, i.e. first layer GFRP rod members 1, second layer GFRP rod members 2 are reliably connected, so as to be formed by first layer GFRP rod members
1st, the surface net shell rock-steady structure that second layer GFRP rod members 2, third layer GFRP rod members 3 are constituted.
7) affiliated facility is installed
According to design requirement, partial cut is carried out to the latticed shell structure after shaping, door-window opening is formed, while laying roofing
Coating.
Latticed shell structure of the present invention uses integral hoisting construction method, and reticulated shell curve generating is being hung dependent on GFRP rod members
There is provided a kind of composite latticed shell structure in field of civil engineering, its dependable performance, making for deformation certainly during dress
Simply, construct quick, cheap, can be applied in Practical Project.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited by appended claim
It is fixed.
Claims (10)
1. one kind lifting self-forming GFRP latticed shell structures, it is characterised in that：The latticed shell structure includes：GFRP flexible elongated rods, are used
The connecting node between the bar that rod member is connected, and anchorage bearing (7)；
The GFRP flexible elongated rods are by first layer GFRP rod members (1), second layer GFRP rod members (2), third layer GFRP rod members (3) group
Into；
Connecting node includes rod end node (5) and interlayer connection node (6) between the bar；
First layer GFRP rod members (1), second layer GFRP rod members (2), third layer GFRP rod members (3) use the GFRP of pultrusion
Hollow circular-tube；First layer GFRP rod members (1), second layer GFRP rod members (2), the rod end of third layer GFRP rod members (3) pass through respectively
Rod end node (5) is connected with anchorage bearing (7)；First layer GFRP rod members (1) are placed on the lower section of second layer GFRP rod members (2),
And first layer GFRP rod members (1) are connected with the intersection of second layer GFRP rod members (2) by interlayer connection node (6)；Third layer
GFRP rod members (3) are placed on the top of second layer GFRP rod members (2), and third layer GFRP rod members (3) and second layer GFRP rod members
(2) intersection is connected by interlayer connection node (6)；
The anchorage bearing (7) is used for first layer GFRP rod members (1), second layer GFRP rod members (2), third layer GFRP rod members
(3) the rod member rod end of support restraint is needed to fix in, to form stable latticed shell structure.
2. a kind of lifting self-forming GFRP latticed shell structures according to claim 1, it is characterised in that：
Before lifting, the first layer GFRP rod members (1) are arranged in smooth location with second layer GFRP rod members (2) orthogonal
On, equidirectional first layer GFRP rod members (1), equidirectional second layer GFRP rod members (2) are arranged in parallel in same layer respectively,
Entered between first layer GFRP rod members (1) and second layer GFRP rod members (2) in two layers of rod member intersection by interlayer connection node (6)
Row connection, so as to form planar bilayer network；
The planar bilayer network lifting constituted in the first layer GFRP rod members (1) and the second layer GFRP rod members (2)
After forming space curved surface double layer grid and being connected by rod end node (5) with anchorage bearing (7), third layer GFRP rod members (3)
It is arranged on second layer GFRP rod members (2), and passes through along the diagonal of each grid cell of space curved surface double layer grid
Interlayer connection node (6) is that first layer GFRP rod members (1) and second layer GFRP rod members (2) are connected with the double-deck rod member of lower section, from
And formed and be made up of three layers of rod member, i.e. first layer GFRP rod members (1), second layer GFRP rod members (2) and third layer GFRP rod members (3)
Surface net shell rock-steady structure.
3. a kind of lifting self-forming GFRP latticed shell structures according to claim 1, it is characterised in that：The first layer GFRP
Rod member (1), second layer GFRP rod members (2) and third layer GFRP rod members (3) use the glass fiber reinforced composite of pultrusion
Material hollow circular-tube, wherein：
The external diameter of hollow circular-tube between 20mm between 100mm, the wall thickness of hollow circular-tube between 2mm between 8mm, hollow circular-tube
Panel length and the ratio between caliber between 15 to 40.
4. a kind of lifting self-forming GFRP latticed shell structures according to claim 1, it is characterised in that：The interlayer connection section
Point (6) is located at the intersection of different layers rod member, and connects different layers rod member by latch closure mode.
5. a kind of lifting self-forming GFRP latticed shell structures according to claim 4, it is characterised in that：The interlayer connection section
Point (6) includes bicyclic node, 3 link points, wherein：Bicyclic node is used to connect adjacent two layers rod member, i.e. first layer GFRP rod members
(1) with second layer GFRP rod members (2), or second layer GFRP rod members (2) and third layer GFRP rod members (3)；3 link points are used for
First layer GFRP rod members (1), second layer GFRP rod members (2), third layer GFRP rod members (3) are connected simultaneously.
6. a kind of lifting self-forming GFRP latticed shell structures according to claim 4, it is characterised in that：The interlayer connection section
Point (6) only limits the out-of-plane relative rotation of relative displacement and rod member of the connected different layers rod member at node, without
Limit relative rotation of the different layers rod member in the rod member plane at node.
7. a kind of lifting self-forming GFRP latticed shell structures according to claim 1, it is characterised in that：The anchorage bearing
(7) while the translation and rotation of rod end node (5) are limited, to form consolidation bearing；
Or, the anchorage bearing (7) only limits the translation of rod end node (5) but does not limit the rotation of rod end node (5), and shape
Into hinged-support.
8. a kind of lifting self-forming GFRP latticed shell structures according to claim any one of 1-7, it is characterised in that：
Connecting node further comprises that rod member extends node (4) between the bar, if during standard member curtailment design requirement, institute
First layer GFRP rod members (1), the second layer GFRP rod members (2), the third layer GFRP rod members (3) are stated respectively by the bar
Part extension node (4) is lengthened, without lengthening when standard member length is enough；
Node is extended by rod member respectively when single first layer GFRP rod members (1), the curtailment of second layer GFRP rod members (2)
(4) lengthen, every first layer GFRP rod member (1) after lengthening, the rod end of second layer GFRP rod members (2) set rod end node respectively
(5)。
9. a kind of lifting self-forming GFRP latticed shell structures according to claim 8, it is characterised in that：The latticed shell structure tool
There is one or more of feature：
--- the rod member extension node (4) is connected by bonding or bolt connecting mode with being connected the bar segment of extension, with same
When bear the effect of axle power, shearing and moment of flexure, form first layer GFRP rod members (1), the second layer GFRP bars for meeting design length
Part (2) and third layer GFRP rod members (3)；The rod member extension node (4) can not be located at the intersection between different layers rod member；
--- the pipe fitting internal diameter of the rod member extension node (4) and the rod end node (5) is more than the external diameter of institute's connecting rod
The length of 0.5mm, rod member extension node (4) and the rod end node (5) between 3 to 6 times of institute's connecting rod external diameter it
Between；The size of the interlayer connection node (6) and the size of institute's connecting rod match；
--- rod member extension node (4), the rod end node (5), the interlayer connection node (6) using stainless steel or
GFRP drawing and extruding section bars are made.
10. a kind of construction method of lifting self-forming GFRP latticed shell structures according to claim any one of 1-9, its feature
It is：The construction method uses the construction method of integral hoisting, and the curve generating of latticed shell structure depends on GFRP flexible members
Deforming certainly in hoisting process；Comprise the following steps：
1) anchorage bearing is arranged
Anchorage bearing (7) is mounted on specified location；
2) rod member cutting and splicing
By GFRP section steel cuttings into designated length, making obtains first layer GFRP rod members (1), second layer GFRP rod members (2), the 3rd
Splicing is carried out in layer GFRP rod members (3), each layer rod member using rod member extension node (4) when single standard member curtailment to prolong
It is long, it need not be extended if single standard member length is enough using rod member extension node (4), rod end node (5) faces respectively
When be fixed to the rod end of first layer GFRP rod members (1) and second layer GFRP rod members (2)；
3) ground is installed
First layer GFRP rod members (1) and second layer GFRP rod members (2) are laid in and applied according to specified location and spacing orthogonal
Workshop on the ground, and makes first layer GFRP rod members (1) under, second layer GFRP rod members (2) upper, while in first layer GFRP rod members
(1) it is attached with the intersections of second layer GFRP rod members (2) using interlayer connection node (6), forms planar bilayer grid knot
Structure；
4) lifting shaping
According to design Heave Here, the planar bilayer grid 3) obtained is lifted in the air, space curved surface form, i.e. space is formed bent
Face double layer grid, and ensure that first layer GFRP rod members (1) and the elevation of second layer GFRP rod members (2) rod end exist by construction monitoring
In error range；
5) landing anchoring
The space curved surface double layer grid for lifting by crane formation is moved into predetermined installation site and transferred, each rod end node (5) is adjusted
Connected respectively with corresponding anchorage bearing (7) after to proper angle, and further by rod end node (5) and first layer GFRP rod members
(1), second layer GFRP rod members (2) are firmly connected；Treat after the completion of all anchorage bearings (7) connection, loosen suspension centre；
6) third layer GFRP rod members are installed
After landing anchoring is completed, on the second layer GFRP rod members (2), along each grid cell of space curved surface double layer grid
Diagonal laying third layer GFRP rod members (3), and by interlayer connection node (6) by third layer GFRP rod members (3) with
The double-deck rod member of side is first layer GFRP rod members (1), second layer GFRP rod members (2) connection, so as to be formed by three layers of rod member i.e. the
The surface net shell rock-steady structure that one layer of GFRP rod members (1), second layer GFRP rod members (2) and third layer GFRP rod members (3) are constituted.
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| CN201710306260.5A CN107152084B (en) | 2017-05-04 | 2017-05-04 | A kind of lifting self-forming GFRP latticed shell structure and its construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424542A (en) * | 2019-08-30 | 2019-11-08 | 清华大学 | A kind of self forming elastic bar space curved surface braiding structure system of multilayer and its engineering method |
| CN110593479A (en) * | 2019-10-10 | 2019-12-20 | 上海建筑设计研究院有限公司 | Wood space latticed shell structure, wood structure support joint structure and mounting method thereof |
| WO2020020091A1 (en) * | 2018-07-24 | 2020-01-30 | 清华大学 | Self-formed spatial curved-surface structural system formed by interweaving elastic rods, and construction method therefor |
| CN113882574A (en) * | 2021-10-25 | 2022-01-04 | 中国建筑第二工程局有限公司 | Construction method of hyperbolic box type large-curvature roof latticed shell structure |
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Cited By (4)
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|---|---|---|---|---|
| WO2020020091A1 (en) * | 2018-07-24 | 2020-01-30 | 清华大学 | Self-formed spatial curved-surface structural system formed by interweaving elastic rods, and construction method therefor |
| CN110424542A (en) * | 2019-08-30 | 2019-11-08 | 清华大学 | A kind of self forming elastic bar space curved surface braiding structure system of multilayer and its engineering method |
| CN110593479A (en) * | 2019-10-10 | 2019-12-20 | 上海建筑设计研究院有限公司 | Wood space latticed shell structure, wood structure support joint structure and mounting method thereof |
| CN113882574A (en) * | 2021-10-25 | 2022-01-04 | 中国建筑第二工程局有限公司 | Construction method of hyperbolic box type large-curvature roof latticed shell structure |
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| CN107152084B (en) | 2019-06-25 |
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